A decade-long battle between Los Angeles regional air quality officials, the U.S. Environmental Protection Agency and California public health groups over the integrity of the area's pollution trading system will be rejoined Friday, as air district...

And you thought the high cost of doing business in California was a bad thing. For the state's motorists, in the case of earthquake- and tsunami-racked Japan, it might actually be a good thing. Refinery companies around the world, including......

Hurricane Rita's late shift to the east spared all but a few Texas oil refineries from significant damage, likely sparing consumers a repeat of the gasoline price shocks that occurred after Hurricane Katrina pummeled plants in Louisiana a month ago,...